Electric sanitary safety razor



Aug. 25, 1936. J. ONNE 2,052,495

' ELECTRIC SANITARY SAFETY RAZOR Filed June 17, 1935 INVENTOR 3 ATTORNEYWITNESS Patented Aug. 25, 1936 UNITED s'mras PATENT UFFHQE 3 Claims.

This invention relates to a power driven safety razor and has for theprimary object the provision of a device of this character which isconvenient to use, easy to clean and maintain in a sanitary conditionand is capable of shaving dry. moist or lathered skin without irritationthereto and is self-sharpening and reversible so that either group ofcutting mediums thereof may be used while the other group is beingsharpened during the use of the device.

With these and other objects in view, this invention consists in certainnovel features of construction, combination and arrangement of parts tobe 4 hereinafter more fully described and claimed.

For acomplete understanding of my invention, reference is to be had tothe following description and accompanying drawing, in which Figure 1 isa vertical sectional view illustrating a power driven safety razorconstructed in ac cordance with my invention.

Figure 2 is a transverse sectional view taken on the line 2-2 of Figure1.

Figure 3 is a transverse sectional view taken on the line 33 of Figure1.

Figure 4 is a plan view, partly in section, showing the rotor andretainer of the razor.

Figure 5 is a sectional view taken on the line 5-5 of Figure 1.

Figure 6 is a fragmentary transverse sectional view illustrating amodified form of my invention.

Figure 7 is a fragmentary plan view, partly in section, showing the formof rotor employed in my modified form of invention.

Referring in detail to the drawing, the numeral l indicates a handle ofa suitable shape so as to permit convenient use oi the razor. The handleII has journaled therein an arbor 2, one end of which is shaped forconnection with a shaft or drive medium of a power source (not shown).It is to be understood that the power source may be of any form such asan electric motor and its connection to the arbor 2 be through aflexible shaft. Removably mounted in the handle 6 is a bearing sleeve tacting as a journal for areduced portion t of the arbor. Ihe reducedportion t provides to the arbor spaced annular shoulders b. The ends ofthebearing sleeve abut said shoulders to prevent endwise movement of thearbor in the handle but still permit free rotation or oscillation of thearbor. While I have referred to the arbor as being driven by an electricmotor, it will be understood that some conventional type of power sourcemay be empioyed which will impart to the arbor an oscillatory movement.

One end of the handle,is reduced and slotted to form a chambered splittype clamp 6 having apertured ears i to receive a bolt or like fastener8. The clamp receives one end of a shell 9 and provides an effectivemeans of detachably securing said shell to the handle. The shell is oftubular formation and includes companion sections It. Adjacent edges ofthe companion sections l0 are beveled or cut away to define cuttingedges H. The cutting edges H are spaced to define a longitudinal slot inthe shell. The other edges of the companion sections are spaced so thatsaid companion sections through the manipulaton of the clamp may beadjusted toa rotor l2 operating in the shell for the'purpose ofcompensating for wear. The rotor is of tube form and extendssubstantially the full length of the shell 9 and has one end constructedto form a detachable drive connection with the end of the arbor 2. Thefree end of the shell 9 is closed by a removable cap i3 which acts toprevent endwise movement of the rotoraway from the arbor 2 and also aidsthe clamp in supporting the companion sections I U of the shell inproper relation to one another. Itis to be understood that the cap itcan be removed from the shell'to permit removal of the rotor forcleaning purposes. Located in and extending substantially the fulllength of the rotor is a tubular receiver Ht which also projects throughan opening in the cap in the form of a finger piece it. A projection itis formed on the receiver Ml and enters a notch of the cap to hold saidreceiver against rotation. '35

The receiver is provided with a longitudinal slot Ni arranged oppositethe slot defined by the cutting edges ii in the shell 9.

The receiver it acts to collect hair removed by the cutting edges it andthe rotor during the movement of the device over a persons skin. Theyreceiver it can be easily removed and emptied after the shavingoperation.

The rotor i2 is of tubular formation and has series of relatively spacedslots l'i formed therein, the end walls of which are undercut or beveledor otherwise shaped to define cutting edges it. Therefore, it will beseen that the rotor constitutes a series of closely related cuttingedges for cooperation with the cutting edges ii in severing hair thatmay pass into the slots l'i between the cutting edges it during rotationor oscillation of the rotor and the movement of the shell over the skin.The slots ll of one group are staggered relative to the slots of theother group.

While I have described the rotor as being slotted to define the cuttingedges, cutting edges l8 may be formed by providing in the rotor rows ofclosely related openings wherein the openings of one row are staggeredrelative to the open-- ings of the adjacent rows. The shapes of theopenings may vary.

The construction of the first rotor described by employing the slots I!will provide to said rotor four groups of cutting edges II so thatduring rotation of the rotor in one direction one pair of groups ofcutting edges cooperate with the cutting edges II in severing the hairwhile 'the other pair of groups of cutting edges have wiping contactwith the cutting edges I i and thereby become sharpened and also have asharpening action on the cutting edges II. The rotor is constructed sothat it may be reversed in the shell 9 whereby another group of cuttingedges l8 may be caused to operate in conjunction with the cutting edgesII when the other group of cutting edges ill have dulled from use andthe last-named cutting edges I8 then are sharpened during the use of thedevice.

In operation, the shell is brought lightly in contact with the skin andmoved over the skin in a direction at right angles to the razor. Thehair of the skin enters the slot of the shell defined by the cuttingedges H and is cut by the moving cutting edges oflthe rotor cooperatingwith the cutting edges H. The severed hair enters the receiver H by wayof the slots therein. Irritation .or' the skin is prevented by the skincontacting the non-cutting part of the razor when the cutting partsthereof become active. For a delicate skin, with soft hair the cuttingedges H of the shell are brought closer to each other by loosening thefastener 8 and turning the companion sections of the shell slightlyuntil the desired adjustment or the cutting edges H is reached. Thus theirritation of the skin is almost completely eliminated. After theshaving operation, the receiver may be readily removed and washed due tothe fact that one end of the receiver is entirely open so that water mayreadily surge into and out of the receiver thoroughly cleasing thelatter.

Having described the invention, I claim:

1. A safety razor comprising a handle, a shell secured to said handleand having spaced longitudinally extending cutting edges adapted to bearbor journaled in said handle and adapted for connection to a powersource, a shell detachably connected to the handle, relatively spacedcutting edges provided to the shell and forming therein a slot, a rotorjournaled in the shell and connected to the arbor, groups of cuttingedges provided to the arbor and the cutting edges of said groups beingclosely related and arranged in staggered relation to the edges ofadjacent groups for cooperation with the cutting edges of.

the shell in severing hair during the turning of the rotor, a removablecap closing one end of the shell and non-rotatable relative thereto, anda slotted receiver mounted in the rotor with its slot opposed to thecutting edges of the shell to permit severed hair to pass therein andcollect, and a detachable connection between the cap and the receiver.

3. A safety razor comprising a handle, an arbor journaled in said handleand adapted for connection to a power source, a shell detachablyconnected to the handle, relatively spaced cutting edges provided to theshell and forming therein a slot, a rotor journaled in the shell andconnected to the arbor, groups of cutting edges provided to the arborand the cutting edges of said groups being closely related and arrangedin staggered relation to the edges of adjacent groups for cooperationwith the cutting edges of the shell in severing hair during the turningof the rotor, a removable cap closing one end of the shell andnon-rotatable relative thereto, a slotted receiver mounted in the rotorwith its slot opposed to the cutting edges of the shell to permitsevered hair to pass therein and collect, a detachable connectionbetween the cap and the receiver, said shell including companionsections whereby said shell may be decreased in diameter to bring abouta comparatively snug fit with the rotor when wear occurs.

JOHN SONNE.

